"Slap" Mu Heng snapped his fingers and threw the triangular icicle that had been cut flat into the bucket.

The final step is to sand the surface to increase light transmission. You only need to rub the surface with your hands and polish it using the principle of ice melting.

After polishing all three sides, Mu Heng dragged the icicle up and looked at the light transmittance, which basically met the needs of the experiment.

"That's it." Mu Heng looked at the national teacher and signaled to him that we could start the last step of the experiment.

"What does Childe want?" At this moment, his attitude towards Mu Heng slowly changed from contempt to an important Taoist child, and he nervously asked Mu Heng's needs.

Although the demon clan has never liked the human race, this one not only has merit, but also plays a key role in the major affairs of the demon clan, and his heart has unparalleled respect.

"Get a blank piece of paper." Mu Heng casually assigned.

The national teacher noticed the change in his attitude before and after his Taoist children, and he was also helpless, the major event of the clan was this "Great Yantian Cause and Effect Sutra", and it was not okay if he didn't pay attention to it.

But he remembered that he had just eaten at Mu Heng's place, and he swallowed back the question that had almost blurted out, and snorted softly.

Instructed Dao Tong to spread out the white paper, Mu Heng raised the ice cube in his hand, looked at the crowd around him, and said loudly: "I said that it is only seven colors, no one believes it, but this is indeed true." ”

"What is this boy going to do, just an ice cube and a blank piece of paper can prove that light has seven colors?"

"No, I don't believe it. No matter what, the light can't be green, can it? ”

"Indeed, even if I admit the color purple, I don't believe how this green came from."

"Right or wrong is the last thing to say, but I think he seems to be full of confidence."

"Senior brother, come on." The gossip kept coming into Lu Siqi's ears, and there were many places where she was puzzled, and she couldn't bear Mu Heng's failure in her heart, so she encouraged silently.

The long-awaited gaze made Mu Heng earn enough eyeballs. Now that it's been exposed, let's run over it all the way in a high-profile way.

"The time has come to witness the miracle." Mu Heng held the triangular icicle and stood horizontally in front of the white paper, constantly adjusting the angle of the light and the distance between the icicle and the white paper in front of the light.

A splash of color flashed on the white paper, but it was captured by the sharp-eyed national teacher. Gorgeous like a rainbow, it looks like the most beautiful scenery in the world.

"Bang.. Bang.." The national teacher clearly sensed his heartbeat, and the research and exploration of countless suns and moons were not the essentials, but today he ushered in the dawn of a breakthrough, and the light was really seven-colored.

Taking a deep look at Mu Heng, the national teacher has infinite expectations for Mu Heng, is the remaining three questions all like this, and there is no difficulty for him?

On the other side, Liu Qing'er and Ye Qingyin cultivated to be higher than others, and they also keenly captured the brilliance that flashed on the white paper, and their hearts were filled with monstrous waves, what is the reason, why are there seven colors in the light?

Even more surprising, how did he know? And how did you come up with such a way to prove it?

Liu Qing'er came into contact with Mu Heng several times, and although she was accustomed to his strange behavior, she was still shocked by this scene. The corners of his mouth smiled slightly, and he said secretly: I don't know what kind of surprise this little man can bring?

Unlike this, Ye Qingyin just knew that Mu Heng had summoned the Heavenly Thunder to destroy the corpse soul of the Seven Star Realm, and she didn't know how she used to get the Taiyin True Water, and now she made this colorful color, compared to why Mu Heng knew these strange knowledge, she was more curious about where Mu Heng came from?

In the first chance encounter, he was so alternative and out of place, like a passerby, who had nothing to do with the world. He said he fell from the sky, and he really wanted to know where he said the sky was.

Mu Heng carefully observed the angle of light, roughly estimated the angle of refraction, slowly adjusted the orientation of the triangular icicle, and finally dyed seven straight ribbons on the white paper like a movie.

"Oh..."Dao Tong's eyes kept staring at the white paper, and finally fixed on the horizontal stripes of red, orange, yellow, green, cyan, blue, and purple distributed from top to bottom, and his mouth was as big as a goose egg.

"Wow" The crowd erupted in exclamations and inhalations.

Fortunately, the triangular prism made by Mu Heng is long enough, and the colorful colors refracted on the paper are not small, and people who are closer to the center can see the strange scene on the white paper.

"One, two, three, four, five, six, seven. It's really seven-colored. ”

"I saw it too, it's so beautiful."

"Isn't this like a rainbow in the sky?"

"Wow, senior brother is so amazing." When Luo Yunjin saw this scene, she looked at Mu Heng with her head held high, if she hadn't been pulled by Ye Qingyin, she would have wanted to rush up and applaud him.

"Sure enough, Senior Brother has never disappointed." Lu Siqi saw that Mu Heng won another game very easily, and he was looking forward to Mu Heng starting the next question soon.

The goal of reshaping the spiritual root is getting closer and closer, and Lu Siqi is also a little happy.

The national teacher looked at Mu Heng, and remembered the prohibition in the Great Dao Sutra, and couldn't believe that it would be broken by such a person. He took a deep look at the scorching sun above his head, and then glanced at the slender and thin young man in front of him, but his whole body was shining brightly, and there was a little softness in his eyes.

The people in the outer circle couldn't see the near scene, but they guessed that Mu Heng's side had succeeded according to the reactions of the people in front of them, and they couldn't stop squeezing in the yearning, wanting to witness this rare scene.

"I can't imagine that you really did it, Childe." Dao Tong looked at the breathtaking scene, and infinite emotion swelled in his heart. At first, I looked down on Mu Heng, but from the previous attention, to the current admiration, the process in my heart has been changing in this short period of time.

Although seeing is believing, Dao Tong still can't see the principle at all. Without the slightest fluctuation of aura, it completely subverted his understanding of cultivation and the Tao in his heart.

It's hard to believe that this is a Terran kid who made it up.

The surrounding crowd has never stopped talking since they saw such a colorful color. Colorful colors often appear on rainbows, but artificially created colors cannot be described without magic.

Originally, some people were pondering the other three questions, and when they heard the commotion here, they all gathered around to see the excitement. Knowing that Mu Heng easily solved the first and second questions, the crowd couldn't help but burst into fierce shouts.

"Question 3, Question 3, Question 3 ......"

At this moment, Mu Heng, who was standing in the crowd, was originally not tall, but his figure rose in an instant, becoming the focus and center of the entire square.

Luo Yunjin and Lu Siqi couldn't help but feel a touch of pride in their hearts: Senior Brother was really the most beautiful boy in the crowd.

Although Liu Qing'er and Ye Qingyin were not stingy with their faces, they wanted to explore the secrets of Mu Heng.

Maybe the first question hasn't attracted their attention yet, but this second question has been completely out of the world's cognition.

Originally, as a junior, Mu Heng, who was not outstanding, seemed to be shrouded in a thick fog at this time, which made the two of them have a strong interest in trying to find out his details.

"The little boy used this miraculous method to solve the second problem, which really helped me a lot. Everyone here wants Xiao Gongzi to continue to solve the third problem, why don't you..."The national teacher listened to the shouts in the crowd, which was also in line with his intentions, and he suggested very sincerely.

The Dao boy beside him also cast an expectant gaze.

Mu Heng knew what the national teacher meant, but he didn't refuse, let's take a look at the third question first, whether he is not sure.

"That's according to what the national teacher said." Mu Heng's plan is to leave the last question on the premise that he can solve it, which will be used as the basis for exploring the secret, and may even be used as a bargaining chip for negotiation.

"What's the third question?" Mu Heng then asked.

"Childe, please." Hearing this, Dao Tong led Mu Heng towards the third bulletin board.

The crowd along the way tacitly got out of the way, so that Mu Heng and the others came to the third bulletin board very smoothly.

Mu Heng stared at the words on the third bulletin board, there were not many, but unfortunately Mu Heng knew even less. Hiding his embarrassment, he asked Dao Tong, "What is the third question?" ”

"Qi Yu Gongzi, what you are asking is an iron ball and a feather, falling from the same height, which one will land first." Dao Tong didn't understand why Mu Heng was already in front of the bulletin board and asked such a question, but he also introduced it patiently.

"Oh?" This is not a free-fall experiment, the answer is very simple, it is to land at the same time.

Dao Tong saw Mu Heng's look of surprise, and then explained: "We have tried countless times, and we all feel that the iron ball will land first, but unfortunately the answer is not correct. ”

Hearing such an answer, Mu Heng was not surprised, after all, in ancient times, earthlings also felt that heavy objects landed faster than light objects.

"Didn't you try another answer?" Mu Heng then wondered. It stands to reason that if the two are compared to each other, there are only three answers, you are fast, I am fast, or the same.

Since there are only three options, why not try them all.

"Don't hide it, we have tried other answers, but we have to explain why, so we don't have the slightest clue." Dao Tong introduced his previous attempt with some discouragement.

The national teacher also sighed helplessly with Daotong's introduction to the previous situation. He is accustomed to using his strength to solve all problems, and he is not used to being powerless in the face of such problems that have nothing to do with cultivation.

Looking at the other party's tangled look, Mu Heng actually felt a wave of sympathy inexplicably. In the face of scientific research, everyone is equal, because it is not just one individual who is stumped, but everyone.

Mu Heng thought about it, too. This question is actually a multiple-choice question, and it is time to try it out and get the answer. But let the reason be explained, but it stumped everyone.

Because of the actual experimental results, the iron ball landed first.

Back then, Galileo single-handedly overturned the erroneous conclusion that had been rampant for 1,900 years, challenged the sage Aristotle, and completed the most perfect experiment on the Leaning Tower of Pisa, the free fall experiment.